Finding the Fourth Proportional to 127,131.09, 190,698.15 and 38,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,131.09 : 190,698.15 = 38,388.50 : x
2. Step 2: Convert to fraction form
   127,131.09/190,698.15 = 38,388.50/x
3. Step 3: Cross multiply
   127,131.09x = 190,698.15 × 38,388.50
4. Step 4: Simplify right side
   127,131.09x = 7,320,614,977.78
5. Step 5: Solve for x
   x = 7,320,614,977.78/127,131.09
6. Step 6: Final answer
   x = 57,583.20